Builds on the site are done by Weak3n, though he mentioned other pros may be doing builds as well at a later date.
They are quite generic for now (don't list many options for counterbuilding other than mainly anti-heal), and i've noticed some builds (e.g. duo or mid builds for some mages) tend to be copy paste, but im sure this will improve over time.
Smite is an online battleground between mythical gods. Players choose from a selection of gods, join session-based arena combat and use custom powers and team tactics against other players and minions. Smite is inspired by Defense of the Ancients (DotA) but instead of being above the action, the third-person camera brings you right into the combat. And, instead of clicking a map, you use WASD to move, dodge, and fight your way through the detailed graphics of SMITE's battlegrounds.